27
Subject to change without notice
STOP
Note: CURSOR MEASURE can not be called when
FFT mode is present.
Depending on the mode (Yt or XY, analog or digital mode) dif-
ferent cursor measure functions can be chosen is this menu,
regarding the cursor lines and their direction.
The cursor lines and the measurement result are displayed
after the “Cursors” menu is switched off by pressing the
MENU OFF pushbutton
44
. The results of cursor measure-
ments will be displayed by the readout in the top right corner
of the screen. (e.g.
Δ
V(CH2):16.6 mV). If a variable control
was activated, the readout will indicate this by replacing the
”:“ by a ”
>
“.
Cursor positioning
The cursor lines and symbols can be moved by POSITION 1
13
and POSITION 2
14
knobs after being activated as cursor
controls. The POSITION knob function can be selected in the
“Pos./Scale” menu which can be called by pressing the CH1/2-
CURSOR-MA/REF-ZOOM pushbutton
15
. In this menu the selec-
tion of ”Cursors“ (long lines) or ”Aux Cursors“ (short lines) or
other symbols will determine which cursor lines/symbols can
be moved by the POSITION 1 and 2 controls.
Menu items
Depending on the operating mode (Analog, Digital, Yt or XY) this
menu will offer various cursor measuring functions which will
also affect the cursor lines and their position. The function key
“Off” switches the cursors off, cause the “CURSORS” menu to
be left and switches the cursor measuring result display in the
readout off.
4.1 Meas.(uring) Type
If this function is activated, the INTENS knob
2
can be used
for measurement selection. In most cases the corresponding
unit will be automatically displayed. The measuring modes are
self explaining.
4.2 Unit
In the modes ”Ratio X“, ”Ratio Y“ and ”Count“ the INTENS knob
symbol
will be shown in addition to a unit, this may then be
used to change the unit.
– ” rat ” (ratio), display of ratios
In this mode the ratios of duty cycles or amplitudes may be
determined with the CURSORS. The distance between the
long CURSOR lines is equal to 1.
– ” % ” (percent), display of percentages
The distance between the long CURSOR lines is equal to 100%.
The result will be determined by the distance of the short
auxiliary cursor line to the long reference line (lower respec-
tively left), if appropriate with a negative sign.
– ” ° ” (degree), measurement of degrees
The distance between the long CURSOR lines is equal to 360
degrees and must be exactly as long as a signal period. The
measurement result will be determined from the distance
between the reference line to the short auxiliary cursor line.
If appropriate with a negative sign. For further information
please consult ”Measurements of phase differences in dual
channel mode (Yt)“ in the section ”First time operation and
pre settings“.
–
”
π
”
One period of a sine wave is equal to 2
π
, hence the dis-
tance between the two long CURSOR lines must be set to
one period. If the distance between the reference line and
the short CURSOR line equals 1.5 periods, ”3
π
“ will be
displayed. If the short cursor line is left of the reference
line a negative sign will be shown.
In combination with the measuring mode “Count” the INTENS
knob symbol
is displayed additionally to the unit, indicating
that it can be determined by the user.
– positive Puls
The number of such pulses, that are located between the
vertical cursor lines and crossing the horizontal auxiliary
cursor line, are displayed.
– negative
Puls
The number of such pulses, that are located between the
vertical cursor lines and crossing the horizontal auxiliary
cursor line, are displayed.
– rising
edge
The number of rising edges, that are located between the
vertical cursor lines and crossing the horizontal auxiliary
cursor line, are displayed.
– falling edge
The number of falling edges, that are located between the
vertical cursor lines and crossing the horizontal auxiliary
cursor line, are displayed.
4.3 Respect
It may be necessary to determine for which signal channel the
CURSOR measurement shall be valid. This is indicated by sho-
wing the INTENS knob symbol
next to the channel number.
After selection of the signal source, the CURSOR lines must
then be positioned to the signal or portions of it displayed by
this channel.
4.4 Off
(Cursors Off)
Pressing the function key “Off” switches the “Cursors” menu,
the cursor lines and the cursor measurement results off.
If only the “Cursors” menu displayed shall be switched off, press
the MENU OFF pushbutton
44
.
5
ANALOG
/
DIGITAL
(pushbutton)
The color in which the pushbutton lights, indicates the operating
mode (analog= green, digital = blue). In case of Yt or XY mode no
settings are affected by switch over. As FFT is only available in
digital mode, it is switched off after switch over to analog mode
and the last used Yt mode is present. If COMPONENT TEST
mode is present (analog mode), switching over to digital mode
automatically switches over to the last used mode (Yt or XY).
Y parameters will not be changed by switching. Time base mo-
des will be changed due to the different operation of the time
bases in both modes. After any switching, time base A will be
selected. The time base speeds selected will not be affected
unless they are not available any more, then the maximum
value will be chosen.
6
RUN
/
STOP
(pushbutton)
This pushbutton has several functions:
6.1 Analog mode, single event capture
The RUN/STOP pushbutton concerns the display of so called
one time events. To prepare the instrument for this, call the
“Trigger“ menu by pressing the MODE pushbutton
20
and ac-
C o n t r o l s a n d R e a d o u t
